王維新臺灣大學:電子工程學研究所潘韋志Pan, Wei-JhihWei-JhihPan2010-07-142018-07-102010-07-142018-07-102009U0001-2407200913453100http://ntur.lib.ntu.edu.tw//handle/246246/189245隨著通訊的進步,人們對頻寬的需求越來越大,因此光通訊越來越受到重視。由於頻寬的增加,訊號切換的能力變得越來越重要,傳統上會利用電子元件來做訊號的切換,但在如此大量的訊號下,此種作法漸漸不能負荷。未來的趨勢必定是希望訊號維持在光纖中進行傳播及交換,藉此增加訊號傳遞的速率。由此可以看出在未來光開關在光通訊方面必定是扮演著重要的角色。論文探討雷射照射法製造BCB光波導熱光開關的可行性。在實驗中,吾人成功的觀察到BCB光波導的熱光效應,包括直波導及2×2多模干涉元件。在直波導方面,探討施加功率與輸出功率的關係。在輸入功率為100mW可達12dB的輸出功率變化;而在2×2多模干涉元件則是探討其切換的特性。在輸入功率同為100mW時,可以看到輸出大小互換的現象。Owing to recent advances in communications, the need of wider bandwidth is becoming more and more important. Therefore, much attention has been turned to optical communication. Traditionally, high-speed electronic components are used for the exchange of signals. However, they are not fast enough for signal transmission. Keeping signal transmission and exchange in the optical domain to increase the signal transmission rate must be the future trend. For this reason, optical switches potentially play important roles in optical communication.In this work, the thermo-optic switching is explored by using ultraviolet laser illuminated BCB optical waveguide devices. Experimental results show thermo-optic effects of channel waveguides and 2?2 multimode interference power splitters are successfully fabricated. For the channel waveguides, the output power is decreased by 12dB when the input power is 100mW. As for the 2?2 multimode interference devices, experimental results show, with an input power of 100mW, the switching of output powers can be successfully observed.中文摘要 Ibstract II錄 III圖目錄 VI表目錄 VIII一章 緒論 1-1 研究背景 1-2 研究動機 2-3 內容概述 3二章 BCB高分子光波導 4-1 BCB高分子材料簡介 4-1-1基本性質 4-1-2光學特性 9-1-3 熱鏈結 10-2 傳統製程 12-3 紫外光雷射照射法 14-4 雷射介紹 18-5 稜鏡耦合系統 24-6 結論 26三章 熱光效應及其應用簡介 27-1 熱光效應 27-2 光開關 27四章 實驗及模擬 32-1 實驗設計 32-1-1 實驗流程 34-1-2 量測儀器介紹 37-2 直波導熱光效應 38-2-1 光場變化圖 38-2-2 能量量測 40-3 2×2多模態光功率分離器熱光效應 42-3-1光場變化圖 42-3-2量測功率對時間的關系 44-4 模擬 45-4-1 直波導熱光效應模擬 45-4-2 輸出能量與溫度圖 48-4-3 2×2多模態干涉元件熱光效應模擬 49-4-4 輸出功率與溫度關係圖 50-5 BCB多分子波導熱穩定性的分析: 51-6 結論 53五章 實驗結果及未來工作 54-1 實驗結果討論 54-2 未來工作 55考文獻 56英文名詞對照 582469363 bytesapplication/pdfen-US高分子光波導熱光效應Benzocyclobutene optical waveguidethermo-optical effect紫外光雷射照射高分子光波導元件熱光效應之研究Thermo-Optical Effect of Ultraviolet Laser Illuminated Benzocyclobutene Optical Waveguide Devicesthesishttp://ntur.lib.ntu.edu.tw/bitstream/246246/189245/1/ntu-98-R96943093-1.pdf